Bellach: observed built density
Municipality in the canton of Solothurn · FSO no. 2542 · Parcel data as of July 2025
- Parcels
- 1’600
1 % of the canton
- Municipal zones
- 32
- Median utilization
- 82 %
Canton: 29 %
Switzerland: 10 %
- Median GFZ
- 0.36
Canton: 0.10
Switzerland: 0.09
- Median height
- 8.4 m
Canton: 9.2 m
Switzerland: 9.5 m
- Median floors
- 2.0
Canton: 2.2
Switzerland: 2.3
About Bellach
Bellach is a municipality in the canton of Solothurn. The parcel data lists 1’600 parcels in 32 municipal zone types. The zone types with the most parcels are Wohnzone, 2-geschossig (794), Landwirtschaftszone (165) and Verkehrszone Strasse (123).
The median parcel is built to a volume utilization of 82 %; half of the parcels lie between 9 % and 113 %. The canton median is 29 %, so Bellach sits above it.
The median building height is 8.4 m at 2.0 floors, and the median floor-area ratio (GFZ) is 0.36. Parcels built in the last 20 years reach a mean volume utilization of 106 % (167 parcels), higher than the 84 % across all building years.
Parcels by municipal zone
| Zone | Parcels | Median utilization |
|---|---|---|
| Wohnzone, 2-geschossig | 794 | 96 % |
| Landwirtschaftszone | 165 | 0 % |
| Verkehrszone Strasse | 123 | 0 % |
| Zentrumszone, 4-geschossig | 72 | 100 % |
| Zentrumszone, 3-geschossig | 61 | 60 % |
| Verkehrsfläche Strasse | 53 | 0 % |
| Wohnzone, 2-3-geschossig | 50 | 103 % |
| Wohnzone, 4-geschossig | 47 | 106 % |
| Industriezone | 41 | 95 % |
| Reine Gewerbezone | 36 | 85 % |
| Spezialzone "Grederhöfe" | 31 | 103 % |
| Gewerbezone mit Wohnnutzung | 22 | 96 % |
| Other zones (20) | 105 | - |
Volume utilization (ratioV)
Of the 1’565 parcels with a value, half lie between 9 % and 113 %. The median is 82 % and the mean 79 %.
Share of parcels by range
- below 50 %32 %
- 50 % to below 100 %33 %
- 100 % to below 150 %25 %
- 150 % and above10 %
Floor-area ratio (GFZ)
Of the 1’564 parcels with a value, half lie between 0.09 and 0.51. The median is 0.36 and the mean 0.37.
Share of parcels by range
- below 0.5074 %
- 0.50 to below 1.0020 %
- 1.00 to below 1.505 %
- 1.50 and above1 %
Building height
Of the 1’120 parcels with a value, half lie between 6.9 m and 9.9 m. The median is 8.4 m and the mean 8.8 m.
Share of parcels by range
- below 8 m44 %
- 8 m to below 12 m44 %
- 12 m to below 20 m12 %
- 20 m and above1 %
Number of floors
Of the 988 parcels with a value, half lie between 1.6 and 2.4. The median is 2.0 and the mean 2.1.
Share of parcels by range
- below 221 %
- 2 to below 362 %
- 3 to below 515 %
- 5 and above2 %
Building age cohorts
Mean volume utilization of the parcels built inside each window, from all years on record down to the last five. The windows overlap: the last 20 years include the last 5.
| Built in | Parcels | Mean utilization |
|---|---|---|
| All years | 1’600 | 84 % |
| Last 60 years | 853 | 109 % |
| Last 40 years | 485 | 114 % |
| Last 20 years | 167 | 106 % |
| Last 15 years | 116 | 110 % |
| Last 10 years | 76 | 110 % |
| Last 5 years | 30 | 127 % |
How to read this page
room shows observed built density: what has been built on the parcels, not what the zoning permits. Volume utilization (ratioV) compares the built volume of a parcel with the reference volume of its municipal zone type. The floor-area ratio (GFZ) is floor area divided by parcel area; building height and number of floors are taken from the buildings on a parcel. Figures pool all municipal zones of the area. Medians and quartiles are read from bins 10 points (ratioV), 0.1 (GFZ), 2 m (height) and 1 floor wide, so they are exact to within one bin; means are exact. A parcel counts in a distribution only when the parcel data has a value for it. The floors distribution leaves out parcels without a building (0 floors).